Bobbin-feeding mechanism for looms



u e J. LUCAS BOBBIN FEEDING MECHANISM FOR LOQMS s Sheets-Sheet 1 FiledDec. 2'7, 1922 J. Lucas,

June 7 1927a 1,631,828

J. LUCAS BOBBIN FEEDING MECHANISM FOR LOOMS Filed Dec. 27, 1922 6Sheets-Sheet 2 WITNESSES m Ri J, Lums ATTORNEYS 6 Sheets-Sheet 3g/VVE/VT0R ATTORNEYS J. LUCAS Filed Dec. 27, 1922 V MEE m BOBBIN FEEDINGMECHANISM FOR LO0MS 1,631,823 June 7 1927'8 J, LUCAS BOBBIN FEEDINGMECHANISM FOR LOOMS Filed Dec. 27, 1922 6 Sheets-5heet 4 1 'I/VVENTOR-WITNESSES 5. Lucas,

,/ ATTORNEYS June 7 196278 v J. LUCAS BOBBIN FEEDING MECHANISM FOR LOOMSFiled Dec. 27, 1922 6 Sheefis-Sheet 5 WITNESSES Arron/ms June 7 1927.1,631,828

J, LUCAS BOBBIN FEEDING MECHANISM FOR LOOMS Filed Dec. 27, 1922 6Sheets-Sheet 6 NVENTO? WITNESSES J. Lucas,

A TTORNEVS Patented June 7, 1927.

UNITED STATES,

PATENT OFFICE.

JONATHAN LUCAS, OF NEXV YORK, N. Y., A SSIGNOR IO LUCAS-LAMBORN LOOMCOR- PORATION, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

BOBBIN-FEEDING MECHANISM FOR LOOMS.

Application filed December 2'7, 1922. Serial No. 609,274.

This invention relates to improvements in looms.

The object of the invention is to provide an improved form of bobbinfeeding mechanism which is certain and entirely automatic in operation.

It is also an object of the invention that the bobbin feeding mechanismbe adapted to thread the shuttle simultaneously with the feeding of abobbin thereto so that every movement of the shuttle is utilized forplacing filling threads between the warp threads. v I

A still further object of the invention is that the bobbin supportingmeans of the shuttle together with the means for feeding the yarn orthread from the bobbin be adapted to utilize the so-called universalwinding of spool or bobbin.

It is also an important object of the invention that the yarn or threadfeeding means from the bobbin carried by the shuttle eliminate anypossibility of breaking athread of yarn of any strength. 7

Other objects, and objects relating to de-v tails of construction,combination and arrangement of parts will hereinafter appear in thedetailed description to follow.

The invention is illustrated by way of example in the accompanyingdrawings, in which Figure l is a view in front elevation of the parts ofa loom embodying the present invention.

Figure 2 is a fragmentary view in front elevation showing the portion ofloom in. which my invention relating to the shuttle feeding mechanism isincorporated.

Figure 3 is a top plan view of the same.

Figure l is a vertical transverse sectional view taken substantially onthe line 4- of Figure 1. l

Figure 5 is a detailed sectional view taken substantially on the line5-5 of F igure' 4.

Figure 6 is a top plan view of the shuttle with the casing thereofremoved. 7

Figure 7 is a view in side elevation of the same showing the casingapplied-in dotted lines.

Figure 8 is a perspective view of a bobbin illustrating the particularwinding thereof and also showing connected thereto thev necessary weftweight.

Figure 9 1s a vertical sectional view through a bobbin and particularly1llus In the drawings B indicates generally a base wh:ch 1s elongated,as shown, and at each end there is formed an upright or post P and Prespectively, the post P being the greatest in height as shown.Intermediate the posts P and P there are located the two posts P whichextend upwardly from the base B and may be formed integrally therewithas shown. The base is preferably of the width shown'in Figure 4;; and atis longitudinal center and adjacent the outer side thereof there extendsupwardly a pair of posts P Also in alignment with these posts there isformed a third post P A shaft S is journaled on the posts P and P, saidshaft carrying a cog wheel 10 at a point adjacent the innermost post Pand said cog wheel being in constant mesh with a pinion-11 carried by. acrank shaft generally indicated at C, said crank shaft being journaledon the pair of posts P and carrying upon its outer end a pulley 12 overwhich there passes a belt 18 which is driven from the motor M. Thepinion 11 is in constant mesh with a cog wheel 14, said cog wheel inturn being secured to a shaft 15 which is ournaled upon the upper endsof the posts P The crank shaft C is formed with two, crank arms orportions which are disposed at 180 with respect to each other, and toeach crank portion there is connected the inner end of a connecting bar16. From each post P and P there is extended an arm 17 to which in eachinstance there is fulcrumed a lever bar 18, said lever bar beingfulcrumed at a point adjacent its one end, as shown, and having itslower end pivotally connected to the outer end of the associatedconnecting bar 16. The purpose of the, lever bars 18 will later becomeapparent.

Each post .1 and P is also formed with a bracket arm '19 extending fromthe inner side thereof to which there is fulcrumed in each instance abell crank lever 20. Each bell crank lever 20 has one arm pivotallyconnected to a connecting bar 21, said connect-ing bars 21 beingconnected at their other :ends to a crank arm carried by the cog wheel 1as at 22, Figure l. 7

Each post P and P carries a slide box 28, said slide boxes occurringadjacent the upperends of the post upon the inner sides thereof andbeing in alignment. lVithin each slidebox there is sl-idably positioneda bar 2lwhich carries a stop-member 25 ad- 'jacent its lower end, saidstop-member being adapted to move in a slot of the boxing in eachinstancesaid slot extending longitudinally of each boxing as at 26Figure 4. The lower end of-each bar 2A- is connected to the free arm ofthe associated bell crank lever *20 through the means of a link 27.[

The upper end of each bar 24 also carries a stop as at 28 which has itsupper-surface inclined as shown.

Through each post P and 1 there is slidably extended a shuttle carrierrod generally indicated by the reference character Each rod 'is formedat its outer end with a slotted enlargement at 29, Figure 1, throughwhich the upper end of the associated lever bar 18 extends. The innerend of each rod- R terminates in an enlargement 31 which issubstantially rectangular in shape and from each side thereof projects afinger 32, Figuresl and 8, said "fingers extending parallel to eachother, as best shown in Figure 3, and projecting from the enlargement 31substantially the distance shown. with 'a vertical slot through whichthere is extended and fulcrumed a latch supporting member 34. Each latchsupporting member terminates at its'lower end in a protrusion 35 whichextends toward the associated slide 23. The upperend of each member 34p'ivotally supports a latch member generally indicated by the referencenumeral 36 which consists in a short bar section terminating at itsinner end in a downwardly extending protrusion 37. Thelatch members 36are spring controlled and adapted to be either brought to maintain ahorizontal position or the tilted and inclined position illustrated inliigure '1 of the drawings.

The shuttle generally indicated the reference character S may consist ina frame F rectangular in shape and best shown in Figure 6. and upon thisframe there is positioned a capor a cover 38, Fi ures 3 and 7, andwith'in this frame the mechanism for supporting the bobbin and Eachenlargement 31 is provided discharging the spool or exhausted bobbin is:supported. This construction will be later described. The frame F haseach side member formedwith a pair of lips 39 to provide in eachinstance agroove-or channel adapted for receiving the fingers 32 of :theshuttle carrying rods R.

are adapted to slide beneath the lowermost lip 39 and in this waysupportthe shuttle. Also it should he mentioned that the fingers o'feachshuttle carrying rod are adapted to support the shuttle in the sameplaneat all times.

The 'fra me F ofthe shuttle-carries at each end a book 42 which isadapted to be en gaged by the protrusion 37 of the latch members 36.shuttle may take place in the following manner: The motorM maybe startedto rotate the shaft S which will in turn in an apparent manner 'operatethe bell cranks 20 for reciprocating the bars. 24 inversely. Theconnecting bars 16 will also reciprocate the shuttle carrying =rods Rinversely. Assume that the shuttle is in *the position shown in Figure1, that-is. released from its associated latch 36 due to the lower endoft-he latch engaging with thestop member 25 and thus raising the saidlatch from the book 42 of the shuttle. Now upon the shuttle carryingrods R moving toward each other; and as the fingers carrietl by the rodR on the left hand side of the loom proceed into the grooves 40 of theshuttle casing. the latch 36 associated with this rod willengage withthe book 42 occurring at this end-of the shuttle. and upon therodsmoving in the opposite direction. the shuttle will be transferredfrom the rod upon which it wasdisposed or carried to the-other rod. Uponthe rods reaching their extreme outward movement the latch 36 on the rodcarrying the shuttle willengage with the stop member and release thesame while the latch carrying elementB l of the other rod 1? will be engagedb-y the stop 28 and the associated latch and swing to itshorizontal position. Now the shuttle carrying rods will again movetoward each other and in this way the shuttle wi l be again transferredand moved to itsother-extreme position. In this man.- ner the continuousreciprocation or passing to and'fro of the shuttle through theqfeedofthe warp threads is effected.

The reciprocation of the Cir The shuttle S is shown in detailin Figures3, 6 and 7 of the drawings. The frame F, cap 38 and'hoo rs 42 of theshuttle have heretofore been referred to. Between the two side membersof the frame F there is F upon the inner side of the supporting' shaft.The outer side member 46 of each frarie F is enlarged to givesufli'cicnt weight so that the frames F will be normally disposed in asubstantial horizontal plane with the enlarged side portions there-' ofresting' upon the ends of the shuttle frame F. The frame F carried bythe shaft 40 is provided with a longitudinalbrace 47, and this sameportion of the frame'adjacent its inner end carries a downwardlydisposed U-shaped portion 48 which extends longitudinally of the frame.as shown in Figure 6. This depending J-shaped portion is adapted to moveupon the inner side of the rod 49 when the frame tilts inwardly, and therod 49' limits the downward movement of the frame. The inward tiltingmovement of the frame associated with the rod or shaft 44 is limited bya rod' 50. Forward of the rod 49 there is positioned a rod 51 which isin a plane slightly below the rod 49 so that it will not interfere withthe downward tilting movementwith the inner side of the frame carried bythe shaft 43. A frame F is rockably mounted be neath the inner sideof-the frame carried by the rod 44. The frame F is rectangular in shapeand itsvend portions 53 supported off-center by suitable studs 54extending from the sides of the shuttle frame F. The outer side portionof the frame F carries a weight 55 which tilts the inner side of theframe upwardly and against the rod 50" when the shuttle is empty.

The shaft 44 has its one end extended into a crank arm 56, said crankarm ter-' minating in a flat'head 57. One of the side members of theshuttle frame F has its top surface at a point adjacent its inner edgeand at its lon itudinal center proi'ided with a recess 58 which ispreferably of the shape shown, and upon each side of this recess thereis secured to the same mem ber of the frame a clip 59, said clip in eachinstance consisting in a bracket portion by which the same may besecured to the frame- F and plate portion 60 which extends parallel withthe lnner side of the associated side member f the frame F. Theoppos ingends of the plate portions 60- are in purpose of which will later beexplained. The other side member of the shuttle frame F is also formedwith a recess 61 which is larger than the recess 56 and forms a curvedwall as shown. both recesses serving to make the parts carried by theshuttle readily accessible.

To the side of the shuttle frame F ha ing the recess 61 there is secureda bracket 62. This bracket has its supporting portion 63 extendingvertically and bifurcated whereby to pivot the one end of a linger 64 bymeans of a pin; or the like 65. The finger 64 terminates at its free endin a curved portion 66. and said fiup'cr may be disposed between a pairof guide praes 67 extending from the portion 63 of the bracket 62. andsaid guide plates each terminating: in a curved portion 67. The finger64 is free to be swung upwardly and rcarwardly with respect to theshuttle and said spring finger carries a spring); wire 68 which has'itsone end secured to a point adjacent the pivotal point of the finger 66and its free end slightly raised with respect to the upper end of thefinger as illustrated in Figure 7. The portion 63 of the bracket 62, asbefore stated. is bifurcated and each of the upper edges so formed isprovided with a notch 69, which notches are in alignment with each otherand the portions 70. of the upper edges of said bracket portion 63 areof less height than the remaining. portions, and these portions 70 havetheir upper edges arcuate in shape as shown.

The bracket plate portion 63 also ful" crums a lever bar generallyindicated by the reference numeral 63 which has its upper edge formedwith a recess 64'. The" lever is fulcrumed off-center so that itsendportion 65" is normally below the other end portion of said lever asillustrated in Figure-'7. s

In order to supply a number of bobbins of yarn or thread to the shuttlethere is provided a magazine generally indicated by the referencecharacter M which is vertically arranged and which may be made of anyheight to support the number of bobbins desired. This magazine issupported by the longitudinal frame members 71 which eX- tend forwardlyfrom the post P From each longitudinal frame member 71 occurrin on theone side of the post there 'isextended an auxiliary supporting framemember 71. and between the free ends of these members there is supportedthe magazine M said magazine consisting: in a plurality of slats 72arranged in spaced relation and adaptedto receive therein a block orweight 73. 1

' The magazine M consists in a sheet metal or other suitable materialand having spaced relation to provide a guideway, the

alongitudin-ally extending slot as at 74, Figures 3 and 1, through whichthe yarn or thread from the bobbin may pass. Also the.

outer wall of the magazine may carry at its edge associated with theslot 74 a wire frame 75, said frame having. its Vertical portionextending parallel with the slot 74 but disposed forwardly thereto. Themagazine M is also formed with a longitudinally extending slot 7 6through which the yarn may pass as illustrated in Figure 8. This slot isclosed at its lower end. The yarn or thread is indicated. by thereference numeral 77 and shown as having its free end secured to theweight 73 which is in the magazine M The bobbin is generally indicatedby the reference character B and specifically shown in Figure 8 of thedrawmgs.

The cap 38 of the shuttle S is provided with an opening 38 through whichthe bobbin 13 may be inserted. Also one side wall of the cap is providedwith a vertical slot 86, the purpose of which will later be madeapparent. The thread or yarn extending from this bobbin, as shown, istied to a block of wood which represents the weight before referred to.This block of wood should have a narrow groove formed about the same ata point intermediate its ends as at 7 9 into which the yarn or threadmay be wound and thus to secure the thread to the block of wood orweight. This weight or block of wood is of such dimensions that it mayeasily pass downward through the magazine M when disposed longitudinallywith relation to the magazine.

Between the magazine M and post P there is extended a pair of supportingbars 80. Above each bar '80 there is also extended between the magazine1 1 and post P a bar 81, said bars in each instance having formedintermediate their ends an upstanding post 82. Each post 82 is providedwith an opening through which there slidably passes a rod 83. The rods83 are connected by the rod 841 which has its one end extended in aportion 85, said portion terminating in a portion 86 which is parallelwith the frame members 71. The free end of the rod extension 86 isslidable through a bracket 8? secured to the magazine M and alsoslidable into the magazine M through a suitable opening formed in theside of said magazine. Preferably this rod is pointed at its free end.

The members are relatively close to each other and between these membersthere is fulcrumed a lever bar 88 by the means of a pin 89. Each end ofthis bar is bifurcated as best shown in Figure 2 and the up per end ofthe lever engages the rod 85. Therods 88 both enter the magazine Mthrough suitable openings provided in the adjacent wall of the.magazine. Beneath the bars 80 there is extended from the post P a pairof bars 90, each bar carrying a pair of upright apertured posts 91. The

post 91 of each bar slidably'suppo'rts a rod 92 which extend into themagazine M at their one end. The rods 92 are connected there ispivotally connected the one end of a connecting bar 95 as at 96, saidbar being pivot-ally connected at its other end to a lever bar 97, saidlever bar 97 having its other end rigidly secured to a transverse shaftwhich terminates at its one end in a crank arin 9-1. The last named endof the connecting bar 95 has attached thereto the one end of a coiledspring 98, said coiled spring having its other end attached to the postP, as shown in Figure 2. e V The bobbin B of the universal form ofwinding is well understood by those skilled in the art and soillustrated in Figure. 80f the drawings. The spindle S consists in awooden core carrying a pair of diametri (:ally opposed spring fingers100 which ex tend longitudinally of the core and are depressible. Theyarn or thread forming the bobbin is wound upon a spool 101 which maybeofcard-board or the like and which cylindrical in shape as shown. henthe spindle S is inserted in the spool the spring fingers 100 preventaccidental removal of the spool. One end of the spindle has threadedtherein a screw 102. When placing a bobbin upon the shuttle the head ofscrew 102 is adapted to cooperate with the plate portion 60 of the clips59 carried by the shuttle and holds thebobbin against movementin onedirection in an obvious manner.

The operation of the bobbin feeding mechanism heretofore described is asfollows: Assuming that the shuttle is in one of its extreme positions,as illustrated in F igure 1 of the drawings, and thus'brought directlybeneath the magazine M which is loaded with a number of bobbins B asillustrated in Figure 2; also assuming that the bobbin within theshuttle has become exhausted, that is, the thread upon the bobbin, andupon this occurring the weighted sides of the frames F will rock theseframes so that they will assume a horizontal position and permitsuiiicient room for the passage of the spool 101 of the bobbin betweentheir opposing sides and thus to drop the spool upon the inner side ofthe frame F The spool will be temporarily supported in this position.Now if this occurs immediately ing before the shuttle reached its lastnamed extreme position, the crank shaft 44 has been rotated so as tolift. its head 57 and likewise permit movement of the lever 63 to raiseits end 65. Heretofore the crank portion of the shaft 44 has engaged thelever 63 to hold it in the position'illustrated in Figure 7 of thedrawings. Upon the movement. of the lever 63 its end 65 will be in aposition to engage the crank arm 94 and as the movement of the shuttletoward its extreme position continues will swing the lever bar 97inwardly against the tension of the spring 98 and thus to in turn move Pthe rods 83 inwardly and the rods 92 outwardly whereupon the lowermostbobbin B will be dropped from the magazine M and another bobbin B besubstituted in the magazine for the one dropping therefrom. Upon thebobbin B coming from the magazine the same will drop through the open-38 in the housing 38 of the shuttle S and fall upon the rocker frames Fand swing their inner sides downwardly. Also the new bobbin coming uponthe shuttle will cause the spool resting upon the inner side of theframe F to drop therefrom, and this spool may roll into a containerprovided therefor. he head of screw 102 of the spindle S will bepositioned between the plate portions 60 of the clips 59 and thus holdthe bobbin against longitudinal movement in one direction. With thebobbin dropping the weight of block 7 3 secured to the yarn on thisbobbin will drop from the magazine 1 rod portions 86 and 94 entering themagazine M will be simultaneously operated with the rods 83 and 92to'drop the weight or block, and it is thought this operation isentirely apparent without further description. The thread or yarnbetween the bobbin and weight 7 3 will now cross the forward end of thefinger 64. Assuming that the shuttle now begins its movement toward itsother extreme position the weight 73 causes the thread to be drawnbeneath the spring 68 of the finger 64 and into the notches 69 and alsodrawn so that the thread passes through the slot 36 in the one side ofthe shuttle housing 38. This operation may be repeated at each time thatthe bob bin becomes exhausted.

The present apparatus is shown as employing two sets of harnesseachgenerally indicated by. the reference character H. For operating theseharness the shaft S carries a pair of cams 104, one for each of theharness H. Each of the cams 104 has a working edge surface which isarcuate in shape and substantially equal to 180 and so arranged thatsaid cams will alternately lift the two sets of harness H. Each set ofharness consists in a frame 105 and within each frame there is supportedthe usual heddle wires 106.

This for the reason that the The frame 105 ineach instance is carried orsupported by U-shaped frame ,105 and this is carried by rods 107 whichin turn are properly supported for vertical movementand which each carryat their lower end a plate 108 which is bifurcated and straddles theshaft S Each plate 108 carries a roller 109 whichis adapted to engagethe peripheral surface of the associated cam 104.

7 At B there is diagrammatically indicated the warp beam and at C isdiagrammatically indicated cloth roll, Figure 4. At 106 and 107 there isindicated the two sets of warp threads controlled by the tWo sets ofharness H. The sets of warp threads 106 and 10. when held as illustratedin this figure provide the usual shed through which the shuttle S passesFor the beater there is provided a frame F which is slidably supportedfor movement in a horizontal plane by guideways 109 which may besupported between the posts P and also between extensions 110 from theposts P Figure'4. The beater frame F carries at its end adjacent thecloth roll C an upright frame F in which there is provided the usualreed B through which the warp threads pass.

The base B of th loom may have formed on its innerside an extendedportion 111 which may be formed with an upright 112 terminating'in aninwardly disposed arm 1.13. Also this extension 111 may berecessed as at112.

A bellcrank lever 113is fulcrumcd by a pin 114, the fulcruming pin beingdisposed in the recess 112. Each .arm

115 and 116 of the bell crank lever has its and bell crank lever 113indicate the one extreme position thereof, while the lines 124 and 125,respectively, indicatethe other extreme position. The inner end of theshaft S carries a cam 126 Figures 4 and 5, said cam having two swells127 which are diametrically opposed to each other. Upon the inner sideof thecam 126 there is positioned a vertically movable frame 128 whichmay be U-shaped for straddling the shaft S and be supported by aU-shaped bracket member 129. The bridge portion of the frame 128 may bestraddled by the bifurcated end of the crank lever arm 116., The frame128 should carry, a roller 130 which is adapted to ride upon theperipheral surface of the cam 126 and thus to move the frame 128upwardly and downwardly twice during one revolution of the cam. Theguide plates 131 hold the roller 130 upon the peripheral surface of thecam as illustrated in Figure 10. \Vith each vertical, movement of theframe 128 the beater frame F will be moved toward: the cloth roll C andthus carry the reeds between the warp threads and paclr the fillerthreads placed in position by the shuttle S. V

The sets of harness H are operated in synchronism with the beater frameF and likewise these tWounits function in synchronism with the shuttle Sso that upon each passage of the shuttle between the warp threads 106and 107 the harnesses are moved to reversethe positions of these warpthreads, and the beater frame F is moved to pack the filler thread orWoof left by the shuttle. It is thought that with this OK- planation,the invention relating to the novel form of beater and also novelmeansfor operating the sets of harness H may be clearlyunderstoodwithout further detailed description. The operation of thebobbin feeding mechanism together with the operation of the shuttle Shas heretofore been given and it is "believed that these operationstaken with the operations of the beater and ban ness described. issuflicientto give to those skilled in the art a clear and comprehensiveknowledge of the manner in which a loom constructed in accordance withour invention may operate.

\Vhile I have shown and described the preferred form of my invention, IWish it to be understood, that the construction, combinationandarrangement of parts may be changed by those skilled in the art withoutdeparting from the spirit'of the invention, as indicated by the appendedclaims.

I claim p 1. In a bobbin feeding mechanism for looms, a bobbin magazinearranged to contain a supply of new bobbins, tripping to release theterminal bobbin from said magazine and to permit it to drop into theshuttle and to push the empty bobbin from said yieldabl'e device.

2, In a bobbin feeding mechanism for looms, a bobbin magazine arrangedto contain a supply of new bobbins, atripping mechanism for normallyholding said bobbins in said magazine, a shuttle having a path oftravel. wiich extends'into receiving relation to said magazines, rockerframes pivctally mounted in said shuttle and projecting towards eachother for supporting a llObiTZ-ll'l in said shuttle, means forautomaticaliy adjusting the frames to inoperative position when thebobbin is empty to permit the empty bobbin to drop in said shuttle, areceiving frame pivotally mounted in said. shuttle foryieldablysupporting the empty bobbin in its dropped position,a crank armconnected with one of said rocker arms, and a lever controlled by saidcrank arm and movable to a position to actuate said tripping mechanismwhen said rocker frames are adjustedto their inoperative p0.sition'whereby the term nal bobbin in said magazine is transferred tothe shuttle and the empty bobbin shuttle.

JONATHAN LUCAS.

is removed from said

